Pipe handling apparatus

A pipe handling apparatus includes a lower mast, upper mast, and trailer. The lower mast and upper mast may be pivotably coupled at a hinge point. The trailer may be coupled to the lower mast by a hydraulic cylinder. The pipe handling apparatus may be transported to a drilling rig and the lower mast mechanically coupled to the drilling rig. The upper mast may be pivoted relative to the lower mast at the hinge point. The lower mast and upper mast may be pivoted from the horizontal position to the vertical position by the hydraulic cylinder.

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Description
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a U.S. non-provisional application which claims priority from U.S. provisional application No. 62/367,977, filed Jul. 28, 2016, which is incorporated by reference herein in its entirety.

TECHNICAL FIELD/FIELD OF THE DISCLOSURE

The present disclosure relates to a drilling rig and specifically a pipe handling apparatus for a drilling rig.

BACKGROUND OF THE DISCLOSURE

When drilling a wellbore, a drill string is extended from the drilling rig into the wellbore. The drill string includes a bit at its lowermost end. The drill string is typically formed from a plurality of end-to-end joined pipe sections. As the wellbore is drilled, additional lengths of drill pipe are added to the drill string to increase the length thereof. The additional lengths of drill pipe, typically sections of two or three individual drill pipes known collectively as a pipe stand, may be stored vertically on the drilling rig. The pipe stands are typically placed standing up on the drilling floor supported by fingerboards at an upper position. The fingerboards separate the stored pipe stands into rows, and prevent the pipe stands from falling over. Typically, the pipe stands lean towards the back of the fingerboard.

SUMMARY

The present disclosure provides for a pipe handling apparatus for a drilling rig. The pipe handling apparatus may include a lower mast. The pipe handling apparatus may further include an upper mast pivotably coupled to the lower mast at a hinge point. The pipe handling apparatus may further include a trailer mechanically coupled to the lower mast by a lifting hydraulic cylinder.

The present disclosure also provides for a method. The method may include providing a pipe handling apparatus. The pipe handling apparatus may include a lower mast including a rig coupler. The pipe handling apparatus may include an upper mast pivotably coupled to the lower mast at a hinge point. The pipe handling apparatus may include a trailer. The method may include transporting the pipe handling apparatus to a drilling rig, mechanically coupling the lower mast to the drilling rig with the rig coupler and a coupling point of the drilling rig, pivoting the upper mast relative to the lower mast at the hinge point, and lifting the lower mast and upper mast from a horizontal position to a vertical position using a lifting hydraulic cylinder mechanically coupled between the lower mast and the trailer.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is best understood from the following detailed description when read with the accompanying figures. It is emphasized that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.

FIG. 1 depicts a side view of a pipe handling apparatus consistent with at least one embodiment of the present disclosure and a drilling rig.

FIG. 2 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

FIG. 3 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

FIG. 4 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

FIG. 5 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

FIG. 6 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

FIG. 7 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

FIG. 8 depicts the pipe handling apparatus and drilling rig of FIG. 1 in an alternate position.

 DETAILED DESCRIPTION

It is to be understood that the following disclosure provides many different embodiments, or examples, for implementing different features of various embodiments. Specific examples of components and arrangements are described below to simplify the present disclosure. These are, of course, merely examples and are not intended to be limiting. In addition, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

FIG. 1 depicts drilling rig 10 and pipe handling apparatus 100. Drilling rig 10 is shown and described herein as a slingshot rig, but may be any land-based drilling rig. FIG. 1 depicts drilling rig 10 in a drilling floor-lowered position.

In some embodiments, pipe handling apparatus 100 may be configured to be transported by trailer 101. In some embodiments, trailer 101 may be a rockover trailer having wheels 103 and trailer body 105. In some embodiments, pipe handling apparatus 100 may be transported within a wellsite and between wellsites by truck 107 using trailer 101. In some embodiments, pipe handling apparatus 100 may include upper mast 109 and lower mast 111. In some embodiments, upper mast 109 may be pivotably coupled to lower mast 111 at hinge point 117. In some embodiments, pipe handling apparatus 100 may include fingerboards 113 and pipe handler 115 as discussed further herein below.

In some embodiments, pipe handling apparatus 100 may be transportable in a collapsed position as depicted in FIG. 1, in which upper mast 109 is pivoted at hinge point 117 to be substantially parallel to and proximate lower mast 111. Upper mast 109 and lower mast 111 may be substantially horizontal when in the collapsed position. In some embodiments, pipe handling apparatus 100 may be sized such that pipe handling apparatus 100 complies with one or more transportation regulations. For example and without limitation, in some embodiments, pipe handling apparatus 100 and trailer 101 may be formed such that pipe handling apparatus 100 is at most 8′6″ (2.6 m wide. In some embodiments, pipe handling apparatus 100 and trailer 101 may be formed such that pie handling apparatus 100 is at most 9′6″ (2.9 m in height. By forming pipe handling apparatus 100 within these or other applicable size limits, pipe handling apparatus 100 may be a non-permit load when transported in the collapsed position.

In some embodiments, to rig up pipe handling apparatus 100 to drilling rig 10 and position pipe handling apparatus 100 to an operational position as described herein below, pipe handling apparatus 100 may be transported to the wellsite at which drilling rig 10 is located. In some embodiments, pipe handling apparatus 100 may be transported to be proximal to V-door side 12 of drilling rig 10 as depicted in FIG. 2. As used herein, V-door side 12 of drilling rig 10 refers to the side of drilling rig 10 through which tubular members such as, for example and without limitation, drill pipe and casing is introduced onto drilling rig 10 by pipe handling apparatus 100. In some embodiments, V-door side 12 of drilling rig 10 may correspond with the side of drilling rig 10 at which a V-door (not shown) is located, however the use of the term “V-door side” is not intended to limit the scope of this disclosure to a drilling rig 10 having a V-door.

In some embodiments, once pipe handling apparatus 100 is positioned proximal to drilling rig 10, truck 107 may be disconnected from trailer 101 as depicted in FIG. 3. In some such embodiments, trailer body 105 may be positioned on the ground.

In some embodiments, lower mast 111 may include one or more rig couplers 119. Rig couplers 119 may, in some embodiments, be connection points for mechanically coupling pipe handling apparatus 100 to drilling rig 10. In some embodiments, drilling rig 10 may include one or more corresponding coupling points 121 positioned to receive rig couplers 119. In some embodiments, rig couplers 119 and coupling points 121 may mechanically couple pipe handling apparatus 100 to drilling rig 10 such that pipe handling apparatus 100 may pivot relative to drilling rig 10 as discussed further herein below.

In some embodiments, as depicted in FIG. 4, one or more positioning hydraulic cylinders 123 may be coupled between trailer 101 and lower mast 111. Positioning hydraulic cylinders 123 may in some embodiments be utilized to lift upper and lower masts 109, 111 such that rig couplers 119 are aligned with the height of coupling points 121. In some embodiments, as depicted in FIG. 5, positioning hydraulic cylinders 123 may be used to move upper and lower masts 109, 111 such that rig couplers 119 engage coupling points 121. In some embodiments, one or more fasteners such as pins may be inserted to mechanically couple rig couplers 119 with coupling points 121.

In some embodiments, as depicted in FIG. 6, one or more lifting hydraulic cylinders 124 may mechanically couple between trailer 101 and lower mast 111. Lifting hydraulic cylinders 124 may in some embodiments be used to lift upper and lower masts 109, 111 into a raised position as further described below. In some embodiments, positioning hydraulic cylinders 123 may be used as lifting hydraulic cylinders 124. In some embodiments, lifting hydraulic cylinders 124 may raise upper and lower masts 109, 111 to be substantially horizontal by pivoting upper and lower masts 109, 111 at rig couplers 119. In some embodiments, as depicted in FIG. 7, upper mast 109 may be pivoted relative to lower mast 111 at hinge point 117. In some embodiments, fingerboards 113 may pivot into the deployed positions as depicted in FIG. 7. In some embodiments, fingerboards 113 may be provided separately from pipe handling apparatus 100 and may be mechanically coupled to pipe handling apparatus 100. Lifting hydraulic cylinders 124 may then be used to lift pipe handling apparatus 100 into the vertical position as depicted in FIG. 8. In some embodiments, pipe handling apparatus 100 may be mechanically coupled to drilling rig 10 by upper beam 125, which may be pivotably coupled to upper mast 109. Lifting hydraulic cylinders 124 may be decoupled from lower mast 111, and trailer 101 may be transported away from drilling rig 10 for storage.

The foregoing outlines features of several embodiments so that a person of ordinary skill in the art may better understand the aspects of the present disclosure. Such features may be replaced by any one of numerous equivalent alternatives, only some of which are disclosed herein. One of ordinary skill in the art should appreciate that they may readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. One of ordinary skill in the art should also realize that such equivalent constructions do not depart from the scope of the present disclosure and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.

Claims

1. A pipe handling apparatus for a drilling rig transportable separately from the drilling rig comprising:

a lower mast;
an upper mast, the upper mast pivotably coupled to the lower mast at a hinge point, the lower mast and upper mast distinct from a mast of the drilling rig; and
a trailer, the trailer mechanically coupled to the lower mast by a lifting hydraulic cylinder.

2. The pipe handling apparatus of claim 1, further comprising a fingerboard.

3. The pipe handling apparatus of claim 1, further comprising a pipe handler.

4. The pipe handling apparatus of claim 1, wherein the lower mast further comprises a rig coupler, the rig coupler mechanically and pivotably coupled to a coupling point on a V-door side of a drilling rig.

5. The pipe handling apparatus of claim 4, further comprising a positioning hydraulic cylinder mechanically coupled between the trailer and the lower mast such that the rig coupler is aligned with a height of the coupling point.

6. The pipe handling apparatus of claim 5, wherein the positioning cylinders is adapted to raise the upper and lower mast to be substantially horizontal.

7. The pipe handling apparatus of claim 1, wherein the trailer is a rockover trailer.

8. The pipe handling apparatus of claim 1, wherein the upper mast and the lower mast are substantially parallel in a lowered position or in a raised position.

9. The pipe handling apparatus of claim 8, wherein the upper mast and lower mast are substantially horizontal in a collapsed position.

10. The pipe handling apparatus of claim 9, wherein the pipe handling apparatus is less than 8′ 6″ wide and less than 9′ 6″ high when the upper mast and lower mast are in a collapsed position.

11. A method comprising:

providing a pipe handling apparatus, the pipe handling apparatus including: a lower mast including a rig coupler; an upper mast, the upper mast pivotably coupled to the lower mast at a hinge point; and a trailer;
transporting the pipe handling apparatus to a drilling rig, the drilling rig having a mast distinct from the upper and lower mast of the pipe handling apparatus;
mechanically coupling the lower mast to a V-door side of the drilling rig with the rig coupler and a coupling point of the drilling rig;
pivoting the upper mast relative to the lower mast at the hinge point; and
lifting the lower mast and upper mast from a horizontal position to a vertical position using a lifting hydraulic cylinder mechanically coupled between the lower mast and the trailer.

12. The method of claim 11, wherein mechanically coupling the lower mast to the drilling rig further comprises aligning the rig coupler with the coupling point of the drilling rig.

13. The method of claim 12, wherein aligning the rig coupler with the coupling point of the drilling rig further comprises lifting the lower mast with a positioning hydraulic cylinder mechanically coupled between the trailer and the lower mast.

14. The method of claim 13, wherein the positioning hydraulic cylinder is the lifting hydraulic cylinder.

15. The method of claim 11, wherein the pipe handling apparatus further comprises a fingerboard pivotably coupled to the upper or lower mast, and the method further comprises pivoting the fingerboard into a deployed position.

16. The method of claim 11, further comprising mechanically coupling a fingerboard to the upper or lower mast.

17. The method of claim 11, further comprising mechanically coupling the upper mast to the drilling rig with an upper beam that is pivotably coupled to the upper mast.

18. The method of claim 11, wherein the trailer is a rockover trailer.

19. The method of claim 11, wherein transporting the pipe handling apparatus to the drilling rig is performed with the upper mast and the lower mast substantially horizontal.

20. The method of claim 11 further comprising after the step of lifting the lower mast and upper mast from a horizontal position to a vertical position:

decoupling the lifting hydraulic cylinder from the lower mast.
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Patent History
Patent number: 10584541
Type: Grant
Filed: Jul 21, 2017
Date of Patent: Mar 10, 2020
Patent Publication Number: 20180030788
Assignee: NABORS DRILLING TECHNOLOGIES USA, INC. (Houston, TX)
Inventors: Padira Reddy (Richmond, TX), Ashish Gupta (Houston, TX), Denver Lee (Houston, TX)
Primary Examiner: Lynn E Schwenning
Application Number: 15/656,894
Classifications
Current U.S. Class: Pivoting Derrick (414/22.56)
International Classification: E21B 15/00 (20060101); E21B 19/14 (20060101); E04H 12/34 (20060101);